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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 29 — Oct. 10, 2000
  • pp: 5309–5317

Optimization of multichannel parallel joint transform correlator for accelerated pattern recognition

Roshan Thapliya and Takeshi Kamiya  »View Author Affiliations


Applied Optics, Vol. 39, Issue 29, pp. 5309-5317 (2000)
http://dx.doi.org/10.1364/AO.39.005309


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Abstract

The multibeam parallel joint transform correlator for optical pattern recognition, which was recently proposed by the authors [Appl. Opt. 37, 5408 (1998)], can increase parallelism without accumulating zero-order background level at the first Fourier transform plane. To evaluate the throughput capability, an experimental trial was made, achieving a 67-ms recognition rate per face per channel, which is limited by the response of the optically addressed liquid-crystal spatial light modulator. A general design theory is developed for dense packing of the optical channels for a given spatial light modulator resolution, considering the bandwidth requirement of the target image. Then the condition for submillisecond throughput with state-of-the-art device technology is discussed.

© 2000 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.1160) Image processing : Analog optical image processing
(100.4550) Image processing : Correlators
(100.5010) Image processing : Pattern recognition
(110.4190) Imaging systems : Multiple imaging

History
Original Manuscript: April 24, 2000
Revised Manuscript: April 24, 2000
Published: October 10, 2000

Citation
Roshan Thapliya and Takeshi Kamiya, "Optimization of multichannel parallel joint transform correlator for accelerated pattern recognition," Appl. Opt. 39, 5309-5317 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-29-5309

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